Recent content by js_online

  1. J

    E85 / E86 BMW Z4 – Android tablet integration

    After installing 4/64Gb Android on Toyota Corolla (Teyes from Aliexpress) for my wife I decided to do refresh also fom my Z4 E85 2008. As Teyes was not available with good configuration for BMW, purchased Junsun V1 Pro 6/128Gb (Junsun Global Store on Aliexpress). Z4 version was not available so...
  2. J

    E85 / E86 BMW Z4 – Android tablet integration

    As I see from the code activateL9935EN() function re-activates device before each set of commands. You can check L9935 datasheet for details, but this is done for the purpose. The main thing is achieve at least one move of motor, this will indicate that you L9935 board is wired properly and SPI...
  3. J

    E85 / E86 BMW Z4 – Android tablet integration

    Sony Xperia ZU AutoBoot on Power Idea is to turn off phone if not on power and not used for a long time (for example 4hours). Autoboot after ignition is turned on (charger connected). Turn off functionality can be achieved by Tasker app Timer and Secure Settings Reboot functionality. But...
  4. J

    E85 / E86 BMW Z4 – Android tablet integration

    Hi! Please see my post from Tue May 19, 2015 2:54 am on page #3. Contains everything you need. You can even see wire colors on photos and pinning on wiring diagram diagram. Kind regards, J.
  5. J

    E85 / E86 BMW Z4 – Android tablet integration

    Good job! Fantastic. Congrats. Looks serious and complete.
  6. J

    E85 / E86 BMW Z4 – Android tablet integration

    :thumbsup: Looks good. TV tuner simplified solution, but on another hand LM1881 is also not big deal. Access to MK4 in E46 looks super easy. To get access to MK4 in Z4 I should remove all center console :) Good luck with completion of you project. Please share final results later.
  7. J

    E85 / E86 BMW Z4 – Android tablet integration

    According to wiring diagrams I used pins 5, 6, 7 are for RGB and 14, 15, 16 for corresponding grounds. Sync is not present on MK4 and is present on TV tuner only. My setup is without TV tuner. If you have setup with tv tuner you should have sync. Pinning in my MK4 was similar to X1313 and X1312...
  8. J

    E85 / E86 BMW Z4 – Android tablet integration

    Hi there! I was not satisfied with VIDEO quality from Board Monitor and how WiFI video sender operated so finally I got time to implement improvements. WiFi video sender is replaced with EasyCap video capture device (6$ on AliExpress). EasyCap viewer app from GooglePlay is used to display...
  9. J

    E85 / E86 BMW Z4 – Android tablet integration

    Regarding initial monitor opening delay after ignition is turned on: 1. Define variable and set value (5000ms = 5 sec in this example): int DELAY_INIT=5000; //delay on ignition 2. Add delay in 2 places in code (setup section and loop section): if (ignState==LOW) { //ignition 12V...
  10. J

    E85 / E86 BMW Z4 – Android tablet integration

    As described in post. You need to solder LM1881 to extract sync from green. Also you need to solder BMW RGB video wires to 15pin D-SUB VGA connector as per Ambery specification. Nothing in this project is just "plugin". But stuff is not complex. Everything is described in all details. You can...
  11. J

    E85 / E86 BMW Z4 – Android tablet integration

    All you need is described in this message. Tablet setup: 1. Sony Xperia Z Ultra + Magnetic charge USB cable + Micro Usb cable (for sync) 2. Arduino R3 UNO + USB cable (for sync) 3. Timer relay 4. 12V relay (to enable arduino on ignition) 5. Converter 12V to 5V 3A Radio and phone functionality...
  12. J

    E85 / E86 BMW Z4 – Android tablet integration

    Hi! As I understood from my setup this happens because stepper motor must be powered before running code. If motor is powered on ignition and code is run simultaneously you have result like this. In original BMW setup stepper motor is powered all the time. This also happens in my car if car...
  13. J

    E85 / E86 BMW Z4 – Android tablet integration

    Actually checked your amazon link. This device is not compatible with current project - I do not see Sync input on it. This is just standard "RGB to Composite Video Converter" without sync input. Believe me, I tried many devices from China and Europe until I found Ambery. First of all Sync is...
  14. J

    E85 / E86 BMW Z4 – Android tablet integration

    LM1881 I purchased in local electronics store. As its relatively chip try one more. Regarding Ambery: Purchased on e-bay with name "e-video", item: "15Khz RGB RGsB RGBS to VGA XGA Converter Scaler". I do not see this item anymore. As I understood by communication this item was purchased directly...
  15. J

    E85 / E86 BMW Z4 – Android tablet integration

    Plan to work and improve picture from board monitor in next days. Found out two more elements in LM1881 spec to reduce noise and cut crap from input signal. 620Ohm resistor and 510pf capacitor. Idea is to add few more elements on LM1881 pin 2 input. According to LM1881 spec: Normally the...
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